20647908

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{30187}}^1$

素因数の和:30216

約数の個数: 36

約数和(自身を含む): 54942160

約数和(自身を除く): 34294252

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 57, 76, 114, 171, 228, 342, 684, 30187, 60374, 90561, 120748, 181122, 271683, 362244, 543366, 573553, 1086732, 1147106, 1720659, 2294212, 3441318, 5161977, 6882636, 10323954, 20647908]

約数ペア:

[(1, 20647908), (2, 10323954), (3, 6882636), (4, 5161977), (6, 3441318), (9, 2294212), (12, 1720659), (18, 1147106), (19, 1086732), (36, 573553), (38, 543366), (57, 362244), (76, 271683), (114, 181122), (171, 120748), (228, 90561), (342, 60374), (684, 30187)]